Saw-horse.



No. 639,5ol. Patented nw. :9, |899.

o. BARNETT.

SAWHORSE.

ummm ined may z5, 1899) lu/UML r I m Nrrnn *ramas OTTAVVAY BARNETT, OFROANOKE, VIRGINIA.

SAW-HORS E.

SPECIFICATION forming part of Letters Patent No. 639,501, dated December19, 1899. Application filed May 25,1899. Serial No. 718,189. (No model.)

To all whom, t may concern:

Be it known that I, OTTAWAY BARNETT, a citizen of the United States,residing at Roanoke, in the county of Roanoke and State of Virginia,have invented certain new and useful Improvements in Saw-Horses; and Ido declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

The invention has relation to saw-horses.

The object of the invention is to provide a saw-horse withlog-supporting members which are made longitudinally adjustable to cutlogs of different lengths; furthermore, to provide a saw-horse with anovel clamp which may be easily and quickly operated to firmly securethe log to the horse and prevent it from following the saw in itsup-draw movement, and, finally, to provide a device of this characterwhich shall be simple of construction, durable in use, andcomparativelyinexpensive of production.

In the accompanying drawings, Figure lis a perspective view ofmyimproved saw-horse. Fig. 2 is alongitudinal sectional View through theclam pin g-lever and the log-en gagin g hook. Fig. 3 is an enlargedfragmentary View of the rack-bar and ratchet-plate.

Like numerals of reference indicate like parts in the several views. r

l denotes the X-su pports of the horse, which may be of any well-knownor approved construction, and 2 its cross-bar. Each support is providedwith a triangular piece 3, secured to it and formed with a polygonalaperture 4., through which the cross-bar extends. This constructionadmits of a longitudinal adjustment of the supports to cut logs ofdifferent lengths.

5 denotes a supplemental X-support which is likewise connected to thecross-bar and is arranged between the two larger supports. Thisadditional or supplemental support, however, is not absolutelynecessary, although I prefer to employ it in the construction of myimproved horse. i

6 denotes a lever pivoted to one leg of one of the X-supports andprovided intermediate its length with a vertical aperture, which Iiaresoutwardly as it approaches the upper surface of the lever. Extendingthrough this aperture is a shank 7 of a hook 8. The lower end of theshank has placed upon it a coilspring 9, which is confined between aplate lO, secured to the under side of the lever, and a stop-stud 1l inthe extreme lower end of the shank.

l2 denotes a plate loosely fitted upon the shank above the upper surfaceof the lever and resting on the upper surface. This plate covers theflaring aperture and prevents sawdust from falling therein and cloggingthe machine, while at the same time permitting of a free swingingmovement of the hook.

1l denotes a stop-pin secured to the shank of the hook and limits thedownward movement of the hook.

13 denotes a rack-bar secured to the X-support to which the lever ispivoted and which is adapted to be engaged by a ratchet-plate 14,secured to the upper surface of the lever.

In operation the log or timber to be acted upon is placed in the usualmanner upon the horse, with the hook swung over it. Now by depressingthe free end of the lever this hook will be forced against the log andwill be held in engagement therewith by the energy of the spring, whichis sufficient to prevent the log or timber from rotating or moving whilebeing operated upon, but which will yield should the saw stick or bind,thereby preventing any breaking or snapping of the saw.

It will of course be understood that various changes in theform,proportion,and the minor details of construction may be resorted towithout departing from the principle yor sacrificing any of theadvantages of this invention.

Having thus described the invention, what is claimed, and desired to besecured by Letters Patent, ism

l. The combination with a saw-horse, of a lever pivoted to one legthereof and provided with a flaring aperture, a hook, the shank of whichpasses through said aperture, and a spring arranged to exert its energydownward to draw the hook in firm engagement with the work to beoperated upon, substantially as and for the purpose set forth.

2. The combination with a saw-horse, of a lever pivoted to one legthereof and provided with a flaring aperture, a hook, the shank of whichpasses through said aperture, a spring ICO arranged to exert its energydownward to my hand in presence of two subscribing Witdraw the hook inrm engagement with the messes.

work to beoperated upon, and a plate loosely f1 T n located upon theshank of said hook to cover OTlAVA BARNEVI 5 the Haring aperture,substantially as and for Witnesses:

the purpose set forth. JAMES R. POURIE,

In testimony whereof I have hereunto set l XV. C. BADER.

